Same here. I looked into building my own, but, frankly, it seemed like a lot of work with an uncertain outcome (in particular the dependencies to the native html rendering engine make me worry that I get the thing to compile, but the editors being unusable).

So we're now another year down the road and Linux continues to move on. Firefox has 64-bit version for Linux - but not for Windows. Ubuntu is now at 14.04. As far as I know, LibreOffice is 64-bit. I think there is a recently released version of RedHat Linux that is 64-bit. We are still waiting for someone to let us know when we will be able to run EPF on 64-bit Linux. I won't install 32-bit Linux just to run EPF. Even Windows applications are slowly migrating to 64-bit. So when do we think there will be a 64-bit version of EPF?

Unless someone steps up to do this, it won't happen any time soon. However, I have gotten Rational Method Composer working on 64 bit SUSE, so I assume EPF Composer will also work on the same platform. I then tried various workarounds to get it working on Ubuntu 64 - but was not successful. I imagine that someone with more technical know-how than I could compare the SUSE and Ubuntu environments and figure out how to get this working on Ubuntu 64.
Volunteers anyone?